Single Mos to be split in two

I have a problem in the my layout. I have a single MOS in 10 fingers as one device but I need this to be equal to 2 separate devices with 5 fingers each (looks like 10pcs also). How do I set this in calibre lvs options so it will become 2 devices in series?

Yes, there is mismatch between the layout and source. The added net cannot be detected in the layout. Is there an lvs option in order to detect/read the series mos? I cannot change the layout side, only the schematic side. I have to split the single mos w/ 10 fingers in layout into two new mos m<1> and m<2> w/ 5 fingers each in schematic by not editing the layout. I am not sure if this is really possible.